G247.8+4.9, a nitrogen-dominated nebula at the outskirts of Puppis

Details G247.8+4.9, a nitrogen-dominated nebula at the outskirts of Puppis G247.8+4.9, a nitrogen-dominated nebula at the outskirts of Puppis

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26a...356..274z&link_type=abstract

Astronomy and Astrophysics, v.356, p.274-278 (2000)

Astronomy and Astrophysics

Astrophysics

4

Ism: Supernova Remnants, Ism: Individual Objects: G247.8+4.9

Scientific paper

Spectra of the emission-line nebula G247.8+4.9 are presented in which an outstandingly high intensity of the lines [N ii]lambda 6548,6583 Ä relative to Hα is observed. From the spectra we obtain E(B-V) =~ 0.7 mag; with this value we deduce a lower limit for the distance of 6 kpc. The nebula appears to be located inside a cavity in the IRAS 60 and 100 mu m maps. This cavity could be a wind blown bubble formed by the progenitor star of the object. The most likely physical interpretation of the nebula is a supernova remnant, although other possibilities are discussed too.

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